ASHRAE Journal - August 2012 - 87

For Refrigerant Safety, 1+1>2
(Supersedes ANSI/ASHRAE Standard 34-2007) Includes ANSI/ASHRAE Addenda listed in Appendix H

ANSI/ASHRAE Standard 34-2010

ASHRAE STANDARD Designation and Safety Classification of Refrigerants

ANSI/ASHRAE Standards 15-2010 and 34-2010 Set Now Available!
15-2010 (Supersedes ANS I/ASHRAE Standard Includes ANSI/ASH 15-2007) RAE Addenda listed in Appendix G ANSI/ASHRAE Stan dard

See Appendix H for approval dates by the ASHRAE Standards Committee, the ASHRAE Board of Directors, and the American National Standards Institute.

This standard is under continuous maintenance by a Standing Standard Project Committee (SSPC) for which the Standards Committee has established a documented program for regular publication of addenda or revisions, including procedures for timely, documented, consensus action on requests for change to any part of the standard. The change submittal form, instructions, and deadlines may be obtained in electronic form from the ASHRAE Web site (www.ashrae.org) or in paper form from the Manager of Standards. The latest edition of an ASHRAE Standard may be purchased from the ASHRAE Web site (www.ashrae.org) or from ASHRAE Customer Service, 1791 Tullie Circle, NE, Atlanta, GA 30329-2305. E-mail: orders@ashrae.org. Fax: 404321-5478. Telephone: 404-636-8400 (worldwide), or toll free 1-800-527-4723 (for orders in US and Canada). For reprint permission, go to www.ashrae.org/permissions. © Copyright 2010 American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.

Safety Standard for Refrigeration Sy stem
ISSN 1041-2336

ASHRAE STAN DARD
s

Together, they add up to safer refrigeration systems. Standard 34 describes a shorthand way of naming refrigerants and assigns safety classifications based on toxicity and flammability data, while Standard 15 establishes procedures for operating equipment and systems when using those refrigerants. ASHRAE offers the standards as a set. Below are highlights of what’s new in each.
ANSI/ASHRAE Standard 15-2010 Safety Standard for Refrigeration Systems with NEW: • Revised requirements for terminating relief vent discharge lines • Revisions to align the standard with UL 984 (Hermetic Refrigerant-Motor Compressors) • Added definitions to better provide for safety of cascade refrigeration systems • Guidance for protection of positive-displacement compressors in cascade systems • Revisions to align with Standard 34
www.info.hotims.com/41642-124

American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.
1791 Tullie Circle NE, Atlanta, GA 30329 See Appendix G for www.ashrae.org approval
dates by the ASHRA and the American Nationa E Standards Commi ttee, the ASHRAE Board l Standards Institute . of Directors, This standard is under continuous maintenance the Standards Commi by a Standing Standa ttee has established rd Project Committee a documented program (SSPC) for which sions, including proced for regular publication ures for timely, docum of addenda or reviented, consensus action the standard. The change on requests for change submittal form, instruct the ASHRAE Web site to any part of ions, and deadlines may be obtained in (www.ashrae.org) or electronic form from in paper form from the an ASHRAE Standa Manager of Standards. rd may be purchased The latest edition of from the ASHRAE Web Customer Service, 1791 Tullie Circle, NE, site (www.ashrae.org) Atlanta, GA 30329or from ASHRAE 321-5478. Telephone: 2305. E-mail: orders@ 404-636-8400 (worldw ashrae.org. Fax: 404ide), or toll free 1-800-5 For reprint permission, 27-4723 (for orders go to www.ashrae.or in US and Canada). g/permissions. © Copyright 2010 Americ an Society of Heating , Refrigerating and Air-Con ditioning Engineers, Inc. ISSN 1041-2336

Price: $89 (ASHRAE Member $75) Product code: 86019

American Society of Heating, Refrige rating and Air-Condition ing Engineers, Inc . 1791 Tullie Circl e NE,
Atlanta, GA 3032 9 www.ashrae.org

ANSI/ASHRAE Standard 34-2010 Designation and Safety Classification of Refrigerants with NEW: • Designations and safety classifications for 1 new single-compound refrigerant and 14 new refrigerant blends • Occupational exposure limits for refrigerants • Data and updates of refrigerant concentration limits (RCL) and safety classifications for several existing refrigerants • Added, optional 2L subclass in Class 2 flammability classification for refrigerants with a burning velocity less than or equal to 10 cm/s • Modified method of calculating the heat of combustion for refrigerants (includes example calculation) • Informative appendix with example calculation of the acute toxicity exposure limit and refrigerant concentration limit for a refrigerant blend

To order, call 1-800-527-4723 (US/Canada) or 404-636-8400 (worldwide) or visit www.ashrae.org/standard15and34-2010
ASHRAE Journal - August 2012

Table of Contents for the Digital Edition of ASHRAE Journal - August 2012
